GRUSKY ROBERT R

Director · SEC CIK 1256116
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Buy track record

How this insider's open-market purchases have performed
This insider has no open-market purchases in the records we parsed, so there's no buy track record to score. Their full filing history is below.
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Open-market buys
$0
0 trades
Open-market sells
$7.14M
33 trades
Net flow
−$7.14M
Net selling
Total filings
61
transactions shown

Full transaction history

All Form 4 activity across every company, newest first
View on SEC EDGAR ↗
STRA
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Dec 12, 2025 ΔOwn −12%

Grusky Robert R sold $112.3K of STRA, trimming their stake 12%.

−$112.3K
1,403 sh @ $80
STRA
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Apr 25, 2025 ΔOwn −12%

Grusky Robert R sold $119.9K of STRA, trimming their stake 12%.

−$119.9K
1,494 sh @ $80
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AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Dec 9, 2024 ΔOwn −2.2%

Grusky Robert R sold $179.8K of AN, trimming their stake 2%.

−$179.8K
1,000 sh @ $180
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Aug 5, 2024 ΔOwn −0.8%

Grusky Robert R sold $63.8K of AN, trimming their stake 1%.

−$63.8K
350 sh @ $182
STRA
Sell GRUSKY ROBERT R · Director · Open-market sale · filed May 6, 2024 ΔOwn −3.0%

Grusky Robert R sold $42.9K of STRA, trimming their stake 3%.

−$42.9K
350 sh @ $123
STRA
Sell GRUSKY ROBERT R · Director · Open-market sale · filed May 6, 2024 ΔOwn −2.1%

Grusky Robert R sold $29.6K of STRA, trimming their stake 2%.

−$29.6K
250 sh @ $119
STRA
Sell GRUSKY ROBERT R · Director · Open-market sale · filed May 1, 2024 ΔOwn −3.7%

Grusky Robert R sold $55.9K of STRA, trimming their stake 4%.

−$55.9K
462 sh @ $121
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Aug 23, 2023 ΔOwn −6.1%

Grusky Robert R sold $480.6K of AN, trimming their stake 6%.

−$480.6K
3,000 sh @ $160
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Aug 23, 2023 ΔOwn −4.3%

Grusky Robert R sold $322.5K of AN, trimming their stake 4%.

−$322.5K
2,000 sh @ $161
STRA
Sell GRUSKY ROBERT R · Director · Open-market sale · filed May 5, 2023 ΔOwn −1.5%

Grusky Robert R sold $14.5K of STRA, trimming their stake 2%.

−$14.5K
175 sh @ $83
STRA
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Mar 2, 2023 ΔOwn −1.6%

Grusky Robert R sold $14.5K of STRA, trimming their stake 2%.

−$14.5K
167 sh @ $87
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Feb 23, 2023 ΔOwn −3.0%

Grusky Robert R sold $220K of AN, trimming their stake 3%.

−$220K
1,500 sh @ $147
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Aug 10, 2022 ΔOwn −2.3%

Grusky Robert R sold $141.1K of AN, trimming their stake 2%.

−$141.1K
1,129 sh @ $125
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Jul 27, 2022 ΔOwn −2.0%

Grusky Robert R sold $120.2K of AN, trimming their stake 2%.

−$120.2K
1,000 sh @ $120
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Mar 10, 2021 ΔOwn −9.4%

Grusky Robert R sold $450K of AN, trimming their stake 9%.

−$450K
5,000 sh @ $90
AN
Sell GRUSKY ROBERT R · Director · Open-market sale · filed Feb 17, 2021 ΔOwn −9.4%

Grusky Robert R sold $400K of AN, trimming their stake 9%.

−$400K
5,000 sh @ $80

Frequently asked questions

How is GRUSKY ROBERT R's win rate calculated?

We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.

Why are some buys not included in the score?

A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.

What do the 1M / 3M / 6M / 12M columns mean?

They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.

Does a high win rate mean I should copy this insider?

No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.

Where does this data come from?

Trades come from GRUSKY ROBERT R's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.